red

1. (adjective) A color next to orange and violet, at the end of the spectrum.
2. (adjective) (of a face) Rosy.
3. (adjective) (of a face) Angry.
4. (adjective) Of a reddish color.
5. (adjective) (offensive, dated) Having reddish skin.
6. (adjective) (of a deck of cards) The heart and diamond cards.
7. (adjective) Made from dark grapes.
8. (adjective) Denoting a red flag or light as a warning.
9. (adjective) Used to show signs of danger or urgency.
10. (adjective) (skiing) Of the second highest level of difficulty
11. (adjective) Stained with blood.
12. (noun) Red color.
13. (noun) A red thing.
14. (noun) Red wine.
15. (noun) A red light.
16. (noun) A red ball in billiards.
17. The situation of owing debt. (in the red)
18. (noun) A communist.
19. (adjective) Related to a political party represented by the color red.
20. (adjective) (offensive) Relating to Amerindians.
21. (adjective) (offensive) Relating to First Nations.
22. (noun) A Bolshevik.
23. (noun) A supporter of the Bolsheviks in the Russian Civil War.
24. (noun) Secobarbital.
25. (noun) Sciaenops ocellatus.
26. (verb) Past tense and past participle of rede.
27. (verb) Alternative spelling of redd.

The couch is all red.
Why is your face red?
Red alert!

boi

Alternative spelling of boy.

Come over here boi!

anusoid

1. (noun) An anus-like human being.
2. (noun) Anus.

We have discovered an anusoid from Uranus.

certs

1. (for certs) Without a doubt; for sure.

I can say for certs that is true.

insta

1. (prefix) Instant.
2. (proper noun) Short form of Instagram; a service that allows one to share photos and videos

Insta-kill (sense 1)
Did you see that video on Insta last night? (sense 2)

c'not

1. (contraction) Cannot.

I c'not beat this level.

aas

1. (noun) Plural of aa.
2. (noun) A degree granted after 2 years of study.
3. (abbreviation) Associate of Arts.
4. (abbreviation) American Academy of Sciences.
5. (abbreviation) Associate of Applied Science.
6. (slang) A misspelling of ass.
7. A typo of the word ass.
8. (noun) A type of lava with a rough surface.
9. (abbreviation) Administrative Assistant.
10. (symbol) A shoe width size between A and AAA.
11. (symbol) A rating of quality, between A and AAA.
12. (symbol) (electricity) A battery size for 1.5 volt cells.
13. (symbol) A movie rating that signifies unsuitable for children under the age of 14.
14. (abbreviation) Alcoholics Anonymous.
15. (abbreviation) Antiaircraft.
16. (abbreviation) Author's alteration.
17. Alternative spelling of aah.
18. Alternative spelling of a'a.
19. Alternative spelling of AA.

That geek is also an AAS.